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Room Addition and home expansion services with before and after transformations
Home Addition Contractors and home expansion transformations

Certified Home Addition Company in Campbell, CA

First step of working with Wise Builders is meeting and looking into the construction plans for your home remodel
Step 1: Let's Get Started
Initial Contact

During our first conversation, our team will ask you a handful of general questions regarding your home addition project in Campbell so that we can better understand your needs and desires. If it feels like we are a good fit for each other, we will assign an experienced project manager to visit your property for your free in-home consultation.

Free In-Home Consultation

The project manager will arrive on the agreed-upon day & time and examine the entirety of your property. Your project manager will be your main point of contact from this point on so that they can truly understand your vision, style, and design concepts for your project.

Scope of Work

If all goes well during the in-home appointment, your project manager will work with you and our office to break down the scope of your entire home addition project. This phase will include an estimate of pricing for the project, the anticipated process, and the expected timeline for the completion of your home addition project in Campbell, California.

Iphone of website of Wise Builders contractors
Wise Builders truck with brand logo and company information
Free in-home consultation

Allow us to show you what we can do for you with our no-obligation, free in-home consultation.

Step 2: Build Framework
Meet At Our Showroom

It is incredibly important to us that you’re able to touch and feel the material finishes available to you so that you can make a confident decision on the finishes of your home expansion project. Our showroom in San Jose will feature beautifully designed cabinetry, a variety of exquisite tiles and flooring, and many more materials to help you finalize your project.

Finalize Gameplan

As you decide on your finishes, we will provide you with the final drawings, layout, design, and 3D renderings so that you can truly see how the newly added rooms to your house will look when we complete your project. Your project manager will walk you through all of the possible choices and outcomes you may have before finalizing your project.


At this point, the excitement has built up and we will both be incredibly eager to get started on your dream project! So upon review of all the finalized details, your project manager and our office will work with you to review and sign the contract so that we can finally begin expanding your home in Campbell!

Wise Builders showroom in san jose, california with cabinetry and door examples for your home remodel
Doors and cabinet shopping at the Wise Builders Showroom in San Jose for your complete home Remodel
Step 3: Pre-Construction
Obtain Permits

Our team will immediately begin obtaining permits and scheduling appointments with the necessary trade experts to guarantee your home is in the optimal state needed to begin the construction phase. Your project manager will handle this process from A to Z since we are a full-service construction company in Campbell, CA!

Time To Shop!

This is the fun part! Time to shop! You and your project manager will take the time to review all the remaining materials and finishes needed for your room addition project from our most trusted vendors. These selections will give that final touch to your beautifully designed new home.


Consistent communication is crucial for a successful process and the peace-of-mind knowing that your project is moving along. Due to our expertise and the care that our project managers have for their projects, you can expect a smooth and transparent process to completion of your home expansion project.

Step 4: Construction Phases

The initial phase of the actual construction will consist of us demolishing the area and removing all of the unwanted materials. Cleaning out the space in a timely manner will ensure that we stay on track with our home addition project timeline and prepare us for the next phase.

Preparation & Framing

Preparation is a key part of a truly smooth installation process, so it is incredibly important that we inspect the space after it’s been demolished and begin the process of framing, drywall, plumbing, and other aspects needed to move on to the installation phase of your Campbell home addition project.


It’s finally here! The installation process is where your home expansion project begins to take shape and finally come to life. Your project manager will ensure that each step is handled with care so that everything is installed in a clean and perfect manner.

Interior home remodel during the construction phase by Wise Builders
Finishing touches of the interior remodel before final inspection by Wise Builders
Step 5: Wrapping Up & Closeout
Review Final Touch-Ups

Once we complete the installation phase, your project manager will walk through the entire project with you and review the final punch list to ensure that everything was covered and handled properly. Any adjustments or minor tweaks will be handled in this final phase of your home addition project in Campbell.

Final Inspection

While it is hard to say goodbye, we know how excited you will be to finally enjoy your newly expanded and more functional home! So this final walk-through with your project manager will be the final inspection needed to bring your home addition project to completion.

5-Star Review!

If your project manager made your dream home a reality, then let’s give them the praise they deserve! You can find us on all review websites like Yelp and Google, and it truly warms our hearts to hear the good news directly from you!

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Ready to move forward?

Begin your home remodeling project with us today with our free in-home consultation.

There are many reasons why homeowners think about embarking on a room addition Campbell project. It can be because they need to extend their space or because they want to add value to their property. Whatever the reason is, a room addition is a great way to make the most out of your home.

But before you start planning your new room addition, there are a few things you need to know, such as the overall budget, types of rooms, and required permits. Also, homeowners should look for the best contractor who offers the highest quality room addition services in Campbell, CA. 

This guide covers everything from the necessary permits to the average room addition cost in Campbell. Find the best home addition contractor in Campbell, California, and get an accurate and fair price quote today. 

Steps to building an addition to your house in Campbell, CA

Looking forward to constructing home additions in Campbell, CA but need help figuring out where to start from? Follow the steps below and make a worthwhile addition to increase your home value. 

  • Design your addition: This includes deciding on the size, layout, and features of the new space.
  • Hire a contractor: A reputable home addition contractor in Campbell, California, will be able to help you finalize the plans and obtain the necessary permits.
  • Get the Permits: Building permits are required for all construction projects, including room additions in Campbell.
  • Prepare the site for construction: This involves demolishing existing structures and excavating for a foundation.
  • Construct the addition: This step includes framing, installing windows and doors, putting up drywall, flooring, and trim work.

Permits for House addition

When making additions to home in the San Francisco Bay Area, building permits are required to begin the process. The city of Campbell has a streamlined approach to getting permits for room additions in Campbell. Homeowners must apply online for a permit and provide the floor plan and details of the proposed addition. 

Then, you have to pay the required fee and request an inspection online. Remember that home additions in Campbell, CA, can’t begin until the permit has been issued.

Establish the budget and scope of your house room addition

Before you start home addition Campbell, decide how much money you’re willing to spend on the project. Be sure to factor in all potential costs when creating your budget, including permits, fees, and other associated expenses. You can then begin to draw plans and start working towards adding on to your house in Campbell.

It is important to set a strict budget and project timeline for every construction project – especially ADU construction. Building an ADU on your property can greatly increase the value of your home, but like with any remodeling project, you must hire the best ADU contractor in Campbell – for the job. 

Can you finance a home addition in Campbell, CA

Yes, definitely. There are plenty of options to finance home addition Campbell. You can take out a home equity loan, line of credit, get a personal loan, or tap into your savings.

The option that’s right for you will depend on several factors, including the cost of the addition, the equity you have in your home, and your overall financial situation. Talk to a professional Campbell room addition contractor to explore your options and find the best way to finance your home addition.

Do home additions add value?

Yes, of course. Just like when you decide to remodel kitchens in Campbell, CA, home additions are a good investment to raise your home’s value. However, there are a lot of factors to consider when determining if a home addition is worth the splurge, such as the size, location, and type of house add on.

While most home additions increase your property value, the amount will vary depending on all of the aforementioned factors. 

How much does a room addition cost in Campbell, California?

The average room addition cost in Campbell, California, is around $70,007. This price can range depending on the size and complexity of the project. The cost will be on the lower end for a simple home expansion in Campbell, such as adding an extra bedroom or bathroom. 

To get a more accurate estimate for your specific project, it’s best to consult a Campbell room addition contractor who is specialized in such projects.

How long to complete a home addition in Campbell?

Making additions to home in Campbell is time-consuming, and it might take around 12 – 18 weeks to complete. However, the final time to execute the project depends on the type of room you are adding to your house and the contractor you have chosen. 

Room addition ideas

Just like a bath remodel in Campbell, California, there are plenty of creative ideas that you can consider when planning to add a room to a house. One popular option is to convert an existing room into a new bedroom, which can be done by adding walls and a door. 

Whatever room additions ideas you decide to pursue, consult a professional additional room construction company in Campbell to ensure that your project is completed safely and up to code.

What is a laundry room addition?

Laundry room additions in Campbell are a great way to keep your washers, dryers, and other laundry supplies in one place. It can also be a great place to fold laundry or iron clothes. So, if you have the space, a laundry room addition can be a great investment for your home.

Living room master bedroom addition

Adding a living room and master bedroom to your home in Campbell can increase your home’s value while providing additional space. However, you’ll need to determine the size of the space and consider how it will be used.

With careful planning and professional home addition services in Campbell, your living room master bedroom addition can be a great asset to your property.

Home addition builders near me

Searching for home addition builders near me? Consider the factors mentioned below and make an informed decision. 


  • Check out their previous work portfolio to see if their style matches your vision for your home addition.
  • Ask for referrals from friends or family who have had similar work done.
  • Always get multiple bids before making your final decision.

Home addition contractor license

You should always check for licensed home remodeling companies in Campbell, CA. A valid contractor license is required to legally perform work on your home. Moreover, it protects you from potential legal issues. So, when hiring a local room addition contractor, ask for their license number and verify that they are indeed licensed before signing any contracts.

Do I need a designer for a room addition near me?

Not necessarily, but it can make the entire construction process significantly easier. They will be able to help you take your inspiration and turn it into reality. They will help you make the most of your space while offering educated suggestions on materials, finishes, and fixtures. 

Campbell Real estate

Before you jump into home additions or search room additions near me, take a second to see how the real estate market is performing in your city. The housing market in Campbell is extremely competitive, scoring 78 out of 100. 

Room additions are becoming popular in Campbell as the city continues to grow and the population continues to increase over the past few years. This is why you should hire custom home builders in Campbell, California to make the most out of your land. 

Average house price in Campbell, California

The average home price in Campbell, California, is around $1.7M, trending up 23.6% year after year. The home value in the city is expected to rise in the coming years as the demand for housing in the area continues to increase. Hence, it is advised to select professional builders like Wise Builder and increase the livable square footage in your home. 

Adding an extra room to your home in Campbell can greatly add value to your property and increase your living space – proving to be a wise remodeling decision. However, since home expansion is a considerable investment, you must hire the right contractor for the job. Consult the professional room addition company, share your visions, and add life to your imagination.

Frequently Asked Questions on Room Additions in Campbell, California

Can I get a construction loan for an addition to home?

Generally, people will not get a construction loan for a room addition construction project. However, you are able to get a renovation loan, known as FHA 203(k) loans, which can be used for room addition projects and are insured by the Federal Housing Administration. Other popular ways to finance a home addition is taking out a personal loan or a home equity loan. 

What is a sunroom addition?

Sunrooms are typically built on the side of a house and have walls made of glass or clear plastic, allowing maximum sunlight exposure. In addition to being a bright and airy space, sunrooms can also be used as an extra bedroom, office, or playroom.  Sunrooms are also known as solarium, which is latin for “place of sun”. 

How much to build a sunroom?

On average, you can expect to pay around $16,000 for a basic sunroom. However, the cost can go up to $126,127, depending on the size of the room, the type of materials used, and whether you hire a professional contractor or do it yourself. 

Is a sunroom considered a living space?

Yes, most sunrooms are considered living spaces. This is because they can be used for various purposes, like dining, relaxing, or working. However, it is not always included in the home’s square footage. In order for it to be considered livable square footage, then it must be well integrated into the home and also have the same HVAC system as the rest of the house. 

Can a home owner pull room addition permits?

Yes, a homeowner can pull room addition permits themselves, as long as they adhere to the city’s codes. However, it is recommended to hire a professional contractor to handle permit collection for you, as this can be a stressful and complicated process.

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